Rechargeable power pack



FIG. 1 is a front perspective view of a rechargeable power pack showing my new design with a lamp shown in broken lines representing visible environmental structure not part of the design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a rechargeable power pack, as shown and described. 